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Update hasher
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abdelrahman committed 2026-09-13 00:20:18 +01:00
1 parent 6a3326e9a5
commit f3a8045ecc
8 files changed
+150 -168
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src/base/hash/hasher/siphash.c
+25 -27
View File
@@ -1,14 +1,14 @@
// vim:fileencoding=utf-8:foldmethod=marker
#include "siphash.h"
#include "hasher.h"
#include "../../../common/aliases/aliases.h"
#include "../../../common/assert/assert.h"
#include "../../../common/misc/misc_utils.h"
wp_intern inline void siphash(WpStream *bytes, const WpSipHasherParams *params, u8 *out, u64 outlen);
wp_intern inline void validate128IO(const WpSipHasher128IO *io);
wp_intern inline void validate64IO(const WpSipHasher64IO *io);
wp_intern inline b8 checkRounds(const WpSipHasherParams *params);
wp_intern inline void siphash(WpStream *bytes, const WpSipHasherData *params, u8 *out, u64 outlen);
wp_intern inline void validateSipHasherData(const WpSipHasherData *io);
wp_intern inline b8 checkRounds(const WpSipHasherData *params);
#define _u32To8LE(p, v) \
(p)[0] = (u8)((v)); \
@@ -44,20 +44,24 @@ wp_intern inline b8 checkRounds(const WpSipHasherParams *params);
v2 = wpMiscUtilsRotl64(v2, 32); \
} while (0)
void wpSipHasher128(WpStream *bytes, void *hasher_io) {
WpSipHasher128IO *io = (WpSipHasher128IO *)hasher_io;
validate128IO(io);
siphash(bytes, &io->params, (u8 *)&io->hash, sizeof(u64) * 2);
WpU128Hash wpSipHasher128(WpStream *bytes, void *hasher_data) {
WpSipHasherData *data = (WpSipHasherData *)hasher_data;
validateSipHasherData(data);
WpU128Hash output = {0};
siphash(bytes, data, (u8 *)&output.hash, sizeof(u64) * 2);
return output;
}
void wpSipHasher64(WpStream *bytes, void *hasher_io) {
WpSipHasher64IO *io = (WpSipHasher64IO *)hasher_io;
validate64IO(io);
siphash(bytes, &io->params, (u8 *)&io->hash, sizeof(u64));
u64 wpSipHasher64(WpStream *bytes, void *hasher_data) {
WpSipHasherData *data = (WpSipHasherData *)hasher_data;
validateSipHasherData(data);
u64 output = 0;
siphash(bytes, data, (u8 *)&output, sizeof(u64));
return output;
}
wp_intern inline void siphash(WpStream *bytes, const WpSipHasherParams *params, u8 *out,
u64 outlen) {
wp_intern inline void siphash(WpStream *bytes, const WpSipHasherData *params, u8 *out,
u64 outlen) {
const u8 *kk = (const u8 *)&params->key;
u64 inlen = bytes->count * bytes->item_size;
@@ -157,20 +161,14 @@ wp_intern inline void siphash(WpStream *bytes, const WpSipHasherParams *params,
_u64To8LE(out + 8, b);
}
wp_intern inline void validate128IO(const WpSipHasher128IO *io) {
b8 magic_match = io->params.magic == WP_SIP_HASHER_128_MAGIC;
b8 rounds = checkRounds(&io->params);
wpRuntimeAssert(magic_match && rounds, "Invalid Siphash 128 IO");
wp_intern inline void validateSipHasherData(const WpSipHasherData *data) {
b8 magic_match = data->magic == WP_SIP_HASHER_MAGIC;
b8 rounds = checkRounds(data);
wpRuntimeAssert(magic_match && rounds, "Invalid Siphash data");
}
wp_intern inline void validate64IO(const WpSipHasher64IO *io) {
b8 magic_match = io->params.magic == WP_SIP_HASHER_64_MAGIC;
b8 rounds = checkRounds(&io->params);
wpRuntimeAssert(magic_match && rounds, "Invalid Siphash 64 IO");
}
wp_intern inline b8 checkRounds(const WpSipHasherParams *params) {
b8 rounds24 = params->compression == 2 && params->finalisation == 4;
b8 rounds48 = params->compression == 4 && params->finalisation == 8;
wp_intern inline b8 checkRounds(const WpSipHasherData *data) {
b8 rounds24 = data->compression == 2 && data->finalisation == 4;
b8 rounds48 = data->compression == 4 && data->finalisation == 8;
return rounds24 || rounds48;
}